CN103157562A - Frequency adjustable self-excitation pulse nozzle - Google Patents
Frequency adjustable self-excitation pulse nozzle Download PDFInfo
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- CN103157562A CN103157562A CN2013101233697A CN201310123369A CN103157562A CN 103157562 A CN103157562 A CN 103157562A CN 2013101233697 A CN2013101233697 A CN 2013101233697A CN 201310123369 A CN201310123369 A CN 201310123369A CN 103157562 A CN103157562 A CN 103157562A
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Abstract
A frequency adjustable self-excitation pulse nozzle comprises an upper nozzle, a self-vibration cavity, a collision angle and a lower nozzle. The upper nozzle is arranged on an end cover at one end of the self-vibration cavity. The collision angle is arranged in the self-vibration cavity. A sealing ring is arranged between the collision angle and the self-vibration cavity. The lower nozzle is in threaded connection with an end cover at the other end of the self-vibration cavity and is connected with the collision angle. An adjusting nut is arranged on the lower nozzle. Jet flow frequency of self-excitation pulse jet flow can be changed by changing upper nozzles with different diameters or self-vibration cavities with different inner diameters or collision angles with different angles or lower nozzles with different lengths or effective cavity lengths. According to the nozzle, on the condition of low pressure, high-viscosity easily-accumulating gelatinoid can be broken and refined, breaking efficiency is improved, safety of storage equipment and material post-treatment equipment is guaranteed, jet flow with large flow can be generated, impact specific energy of jet flow can be obviously improved, strong stir effect is achieved, a low-pressure pump can be used for replacing a high-pressure reciprocation pump machine set, equipment investment and using cost of equipment are lowered.
Description
Technical field
The present invention relates to a kind of nozzle for jet flow cleaning, the adjustable self-excited pulsed jet of a kind of frequency particularly is applicable to specially for the cleaning of large-scale storage facilities, belongs to the nozzle technology field.
Background technology
Growing along with science and technology, people more and more pay attention to energy savings and environmental protection, impel the jet flow cleaning industry also more and more urgent to the demand of new and effective cleaning technique scheme.At present, the cleaning of large-scale storage facilities (as industrial petroleum tank, heavy oil tank, chemical enterprise heavier feeds transfer tank etc.) is take Cleaning by High Pressure Water Jet as main.
Cleaning by High Pressure Water Jet is the leading technology in modern cleaning industry, due to the high-pressure trend of water jet operation, the development trend of maximization, it is 150 to 250MPa that the concept of high-pressure water jet is admitted operating pressure gradually, unit has the advantages such as efficient is high, pollution-free, but wearing and tearing and life requirements to high pressure nozzle significantly improve, to the sealing property of the seal of reciprocating pump unit acid test especially, large and replacing consumable accessory of the investment of equipment unit simultaneously is also frequently to restrict the factor that Cleaning by High Pressure Water Jet further develops.And the high-pressure water jet that high pressure nozzle produces is difficult under the low pressure condition its fragmentation, refinement the sticking colloid substance of easily assembling of height.
Summary of the invention
Deficiency for existing the Technolgy of High Pressure Water jet Cleaning mesohigh nozzle existence, the invention provides the adjustable self-excited pulsed jet of a kind of frequency, this nozzle produces low pressure and mass flow self-excited pulse cavitating water jet to the water flow energy that has certain initial flow rate, and frequency is adjustable.
The self-excited pulsed jet that frequency of the present invention is adjustable is by the following technical solutions:
This self-excited pulsed jet, comprise top nozzle, self-vibration cavity, impingement angle and lower nozzle, top nozzle is arranged on the end cap of self-vibration cavity one end, impingement angle is arranged in the self-vibration cavity, and and the self-vibration cavity inner wall between be provided with sealing ring, lower nozzle is threaded connection on the end cap of the self-vibration cavity other end and with impingement angle and is connected, and is provided with adjusting nut on lower nozzle.
Impingement angle is tapered.
The end cap that connects lower nozzle on the self-vibration cavity is provided with two-layer above staged step, and the end cap of installing nozzle on the self-vibration cavity is provided with concentric two-layer above sealing ring, can make like this self-vibration cavity realize multiple different inner diameters.
Top nozzle is connected by pipeline with outside water pump, water pump with the water pressurized delivered to top nozzle, current enter the self-vibration chamber and impingement angle bumps, because the existence of unstable shear layer can form axisymmetric collar vortex structure, along with the continuous variation of collar vortex pressure, lower nozzle is launched the cavitation pulse water jet.Current with certain initial flow rate can produce the water jet with Cavitation Characteristics and pulse characteristic after nozzle, the water jet repeated action is in the target material, thereby play the sedimental cleaning action of large-scale storage facilities high viscosity.The lower nozzle of the cavity in the top nozzle by changing different bores, different cavity footpath, the impingement angle of different angles, different length or adjust the jet frequency that effective cavity length (position of impingement angle in the self-vibration cavity) all can change the self-excited pulse jet.
The present invention can improve crushing efficiency with the broken refinement of the sticking colloid substance of easily assembling of height under the low pressure condition, has guaranteed the security of storage facilities and material equipment for after-treatment; Can produce the jet of large flow, significantly improve the impact specific energy of jet, reduce energy consumption, have very strong agitation effects, deposit and raw material broken in large-scale storage tank, refinement are mixed, be convenient to extract out and carry; Can replace the high pressure reciprocating pump unit with low-lift pump, reduce equipment investment and use cost.
Description of drawings
Fig. 1 is self-excited pulsed jet structural representation of the present invention;
In figure: 1, top nozzle end cap, 2, top nozzle, 3, the top nozzle locating ring, 4, sealing ring, 5, sealing ring, 6, sealing ring, 7, spring washer, 8, nut, 9, screw rod, 10, sleeve, 11, sealing ring, 12, impingement angle, 13, lower nozzle disc, 14, locking nut, 15, lower nozzle.
The specific embodiment
As shown in Figure 1, the adjustable self-excited pulsed jet of frequency of the present invention mainly comprises top nozzle 2, self-vibration cavity 10, impingement angle 12 and lower nozzle 15.The self-vibration cavity is to connect two end caps at the two ends of a sleeve 10 to form, and two end caps are exactly top nozzle end cap 1 and lower nozzle disc 13.Two end caps are fixedly clamped sleeve 10 with nut 8 by four screw rods 9 and spring washer 7 and are in the same place.Be provided with sealing ring 5 between sleeve 10 and top nozzle end cap 1.Top nozzle 2 is arranged on top nozzle end cap 1, and by top nozzle locating ring 3 location.Also be provided with multi-layer sealed circle (being sealing ring 4 and sealing ring 6 in Fig. 1) on top nozzle end cap 1, can guarantee like this sealing between sleeve 10 and top nozzle end cap 1 when using the sleeve 10 of different inner diameters.Lower nozzle disc 13 is provided with multi-step formula step (in Fig. 1 being three layers), in order to the sleeve 10 that different inner diameters is installed.The internal diameter that changes sleeve 10 can change the jet frequency of self-excited pulse jet.
Impingement angle 12 is arranged on (being in sleeve 10) in the self-vibration cavity, can be in the interior slip of sleeve 10.Be provided with sealing ring 11 between impingement angle 12 and sleeve 10 inwalls, among the cavity that prevents water inflow impingement angle 12 right parts.Impingement angle 12 tapered, the tapering that changes impingement angle 12 can change the jet frequency of self-excited pulse jet.Lower nozzle 15 is threaded connection on lower nozzle disc 13, and be connected with impingement angle 12, be provided with the locking nut 14 of adjusting the position of impingement angle 12 in the self-vibration cavity on lower nozzle 15, unclamp locking nut 14, rotate lower nozzle 15, lower nozzle 15 can drive impingement angle 12 and move in the self-vibration cavity, after adjusting to correct position, tighten again locking nut 14, prevent that lower nozzle 15 from rotating.The position of adjustment impingement angle 12 in the self-vibration cavity can change effective cavity length (distance between top nozzle 2 and impingement angle 12), namely can change the jet frequency of self-excited pulse jet.
During application, top nozzle 2 is connected by pipeline with the centrifugal multistage pump multiple centrifugal pump of outside, current enter the self-vibration cavity and impingement angle 12 bumps, because the existence of unstable shear layer can form axisymmetric collar vortex structure, continuous variation along with collar vortex pressure, form the cavitation pulse water jet, and penetrate by lower nozzle 15.
Above-mentioned self-excited pulsed jet is simple in structure, detachably, by the impingement angle 12 of the top nozzle of changing different bores, the self-vibration cavity of different inner diameters, different taperings, the lower nozzle 15 of different length or the jet frequency that the adjustment effective cavity length all can change the self-excited pulse jet.
Self-excited pulsed jet of the present invention has following characteristics:
1. to the sticking colloid substance of easily assembling of height, common jet is difficult under the low pressure condition its fragmentation, refinement, and low pressure self-excited pulse jet is due to the poly-loose pulse characteristic of its distinctive low frequency, the gluey object of bulk can be effectively decomposed in poly-loose vibration repeatedly by jet, make its refinement, guaranteed the security of storage facilities and material equipment for after-treatment;
2. the jet of the large flow that produces by the present invention has very strong agitation effects, and deposit and raw material broken in large-scale storage tank, refinement are mixed, and is convenient to extract out and conveying;
3. low pressure and mass flow self-excited pulse cavitation jet is under the low pressure condition, make the pressure of jet fluid lower than local saturated vapor pressure, thereby generating gasification, the growth of gas core and the broken cavitation jet that can make have strike pressure higher than the solid jet several times, significantly improved the impact specific energy of jet, reduce energy consumption, improved strike, crushing efficiency to the high viscosity solid waste.
4. adopt cleaning unit energy of the present invention to replace the high pressure reciprocating pump unit with low-lift pump, reduce equipment investment and use cost.
Claims (4)
1. self-excited pulsed jet that frequency is adjustable, comprise top nozzle, self-vibration cavity, impingement angle and lower nozzle, it is characterized in that: top nozzle is arranged on the end cap of self-vibration cavity one end, impingement angle is arranged in the self-vibration cavity, and and the self-vibration cavity inner wall between be provided with sealing ring, lower nozzle is threaded connection on the end cap of the self-vibration cavity other end and with impingement angle and is connected, and is provided with adjusting nut on lower nozzle.
2. the adjustable self-excited pulsed jet of frequency according to claim 1, it is characterized in that: described impingement angle is tapered.
3. the adjustable self-excited pulsed jet of frequency according to claim 1, is characterized in that: connect to descend the end cap of nozzle to be provided with two-layer above staged step on described self-vibration cavity.
4. the adjustable self-excited pulsed jet of frequency according to claim 1 is characterized in that: the end cap of installing nozzle on described self-vibration cavity is provided with concentric two-layer above sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101233697A CN103157562A (en) | 2013-04-10 | 2013-04-10 | Frequency adjustable self-excitation pulse nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101233697A CN103157562A (en) | 2013-04-10 | 2013-04-10 | Frequency adjustable self-excitation pulse nozzle |
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| CN103157562A true CN103157562A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101233697A Pending CN103157562A (en) | 2013-04-10 | 2013-04-10 | Frequency adjustable self-excitation pulse nozzle |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752433A (en) * | 2014-01-22 | 2014-04-30 | 北京科技大学 | High-pressure water jet self-oscillation nozzle device |
| CN103817028A (en) * | 2014-03-12 | 2014-05-28 | 武汉大学 | High-pressure self-oscillation oscillating impulse jet flow nozzle with continuous adjustable cavity length |
| CN105772246A (en) * | 2016-04-11 | 2016-07-20 | 武汉科技大学 | Parallel double-cavity self-oscillation impulse jet flow atomization device |
| CN105868488A (en) * | 2016-04-11 | 2016-08-17 | 武汉科技大学 | Method for designing cavity wall of self-excited oscillatory pulse nozzle |
| CN108031566A (en) * | 2017-10-17 | 2018-05-15 | 北京科技大学 | A kind of adjustable high-pressure water jet self-vibration spray nozzle device of structure |
| CN108722694A (en) * | 2018-04-12 | 2018-11-02 | 南京航空航天大学 | A kind of supersonic jet oscillator |
| CN108941106A (en) * | 2018-07-17 | 2018-12-07 | 山东大学 | Comprehensive self-excited pulse cavitation jet washer |
| CN109701778A (en) * | 2018-11-16 | 2019-05-03 | 韶关市诚湃新能源科技有限公司 | A kind of automatic spray apparatus and spraying method of house refuse microbiological decomposer |
| CN109824173A (en) * | 2019-03-30 | 2019-05-31 | 山东大学 | A kind of organic wastewater three-level waterpower cavitation process system |
| CN113083530A (en) * | 2021-03-01 | 2021-07-09 | 武汉大学 | Cavitation nozzle with continuously adjustable central body position |
| WO2023031181A1 (en) * | 2021-08-31 | 2023-03-09 | Khs Gmbh | Cleaning module for the stationary external cleaning of kegs |
Citations (5)
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| CN1073376A (en) * | 1991-12-17 | 1993-06-23 | 陈国莲 | LF self-oscillation cavitation pulse jet nozzle and production method thereof |
| CN2299667Y (en) * | 1996-06-14 | 1998-12-09 | 宋节行 | Segmented resonance pulse jet nozzle |
| WO2000032275A1 (en) * | 1998-11-30 | 2000-06-08 | Dostovalov Viktor Alexandrovic | Improvements to fire-fighting techniques |
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-
2013
- 2013-04-10 CN CN2013101233697A patent/CN103157562A/en active Pending
Patent Citations (5)
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|---|---|---|---|---|
| CN1073376A (en) * | 1991-12-17 | 1993-06-23 | 陈国莲 | LF self-oscillation cavitation pulse jet nozzle and production method thereof |
| CN2299667Y (en) * | 1996-06-14 | 1998-12-09 | 宋节行 | Segmented resonance pulse jet nozzle |
| WO2000032275A1 (en) * | 1998-11-30 | 2000-06-08 | Dostovalov Viktor Alexandrovic | Improvements to fire-fighting techniques |
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Non-Patent Citations (1)
| Title |
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| 李春峰: "用于油罐清洗的自激脉冲喷嘴研究", 《中国优秀硕士学位论文全文数据库》, 15 September 2007 (2007-09-15), pages 45 - 52 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752433B (en) * | 2014-01-22 | 2017-01-04 | 北京科技大学 | A kind of high-pressure water jet self-oscillation nozzle device |
| CN103752433A (en) * | 2014-01-22 | 2014-04-30 | 北京科技大学 | High-pressure water jet self-oscillation nozzle device |
| CN103817028A (en) * | 2014-03-12 | 2014-05-28 | 武汉大学 | High-pressure self-oscillation oscillating impulse jet flow nozzle with continuous adjustable cavity length |
| CN103817028B (en) * | 2014-03-12 | 2016-02-10 | 武汉大学 | A kind of chamber long continuously adjustabe high pressure self-excited oscillation pulsed jet nozzle |
| CN105772246B (en) * | 2016-04-11 | 2019-05-17 | 武汉科技大学 | A kind of parallel double-chamber room self-excited oscillation pulsed water jet atomising device |
| CN105772246A (en) * | 2016-04-11 | 2016-07-20 | 武汉科技大学 | Parallel double-cavity self-oscillation impulse jet flow atomization device |
| CN105868488A (en) * | 2016-04-11 | 2016-08-17 | 武汉科技大学 | Method for designing cavity wall of self-excited oscillatory pulse nozzle |
| CN108031566A (en) * | 2017-10-17 | 2018-05-15 | 北京科技大学 | A kind of adjustable high-pressure water jet self-vibration spray nozzle device of structure |
| CN108031566B (en) * | 2017-10-17 | 2023-10-27 | 北京科技大学 | High-pressure water jet self-vibration nozzle device with adjustable structure |
| CN108722694A (en) * | 2018-04-12 | 2018-11-02 | 南京航空航天大学 | A kind of supersonic jet oscillator |
| CN108941106A (en) * | 2018-07-17 | 2018-12-07 | 山东大学 | Comprehensive self-excited pulse cavitation jet washer |
| CN109701778A (en) * | 2018-11-16 | 2019-05-03 | 韶关市诚湃新能源科技有限公司 | A kind of automatic spray apparatus and spraying method of house refuse microbiological decomposer |
| CN109824173A (en) * | 2019-03-30 | 2019-05-31 | 山东大学 | A kind of organic wastewater three-level waterpower cavitation process system |
| CN113083530A (en) * | 2021-03-01 | 2021-07-09 | 武汉大学 | Cavitation nozzle with continuously adjustable central body position |
| WO2023031181A1 (en) * | 2021-08-31 | 2023-03-09 | Khs Gmbh | Cleaning module for the stationary external cleaning of kegs |
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Application publication date: 20130619 |